I. Harjan, “Strengthening Fourth-Grade IPAS Learning Outcomes through Cooperative Learning: A Two-Cycle Classroom Action Research in Indonesia”, JETINDO, vol. 1, no. 1, pp. 44–65, Jul. 2026, Accessed: Aug. 04, 2026. [Online]. Available: https://journal.terbaik.or.id/index.php/JETINDO/article/view/10